ΔE 5.5, very close: most people won’t see a difference side by side. Canvas is a little lighter, cooler than Matt Grime. They are different kinds of paint: AMMO by Mig Matt Grime is an ink, glaze or transparent paint and Army Painter Canvas is an opaque base/layer paint, so they won’t behave the same on the model even where the colour is close.
Yes, for most jobs. Very close match (ΔE 5). Canvas is a little lighter, cooler than Matt Grime. They are different kinds of paint.
The same difference applies the other way round: Matt Grime is a little darker, warmer.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Matt Grime on the colour wheel See Canvas on the colour wheel
All matches: Matt Grime equivalents · Canvas equivalents